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  • Basic Info
Licensed from
Generic: gamma-Linolenic Acid
treats Pruritus, Immune enhancement, Ulcerative colitis, Diabetic neuropathy, Attention deficit hyperactivity disorder, Osteoporosis, Menopausal hot flashes, Blood pressure control, Sjogren's syndrome, Rheumatoid arthritis, Mastalgia, Migraine, Pre-eclampsia, Premenstrual syndrome, Acute respiratory distress syndrome, Atopic dermatitis, and Cancer treatment

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Herbs & Supplements


Blackcurrant berry, blackcurrant dried leaf, blackcurrant oil, blackcurrant seed oil, borage oil (Borago officinalis), borage seed oil, BSO, bugloss, burage, burrage, casis, cassis, cureall EPO, Efamol, European black currant, European blackcurrant, evening primrose oil, fever plant, fungal oil, king's grosellero negro, hempseed oil, huile de hourrache, huile d'onagre, n- 6 essential fatty acids, night willow- herb (Oenothera biennis), omega- 6, omega- 6 fatty acids, omega 6 oil, omega- 6 oil, polyunsaturated fatty acid, primrose, PUFA, quinsy berries, ribes nero, ribes nigri folium (Ribes nigrum), scabish, siyah frenkuzumu (Turkish), squinancy berries, starflower, starflower oil, sun drop, zwarte bes.


Gamma linolenic acid (GLA) is a dietary omega- 6 fatty acid found in many plant oil extracts. Commercial products are typically made from seed extracts from evening primrose (average oil content 7- 14%), blackcurrant (15- 20%), borage oil (20- 27%) and fungal oil (25%). GLA is not found in high levels in the diet. It has been suggested that some individuals may not convert the omega- 6 fatty acid linoleic acid to longer chain derivatives, such as GLA, efficiently. Thus, supplementation with GLA- containing oils, such as borage oil and evening primrose oil, is occasionally recommended to increase GLA levels in the body.

GLA is available commonly as a dietary supplement and is sold over the counter in capsules or oil to treat a variety of conditions such as eczema, oral mucoceles (mucus polyps), hyperlipidemia (high cholesterol), depression, postpartum depression, chronic fatigue syndrome (CFS), psoriasis (chronic skin disease), muscle aches, and menopausal flushing.

There is currently good evidence for GLA treatment in rheumatoid arthritis, acute respiratory distress syndrome, and diabetic neuropathy (nerve damage). Little or no effect has been found in treatment of atopic dermatitis, attention deficit hyperactivity disorder (ADHD), cancer prevention, menopausal flushing, systemic sclerosis, and hypertension (high blood pressure). GLA has also been used to help with the body's response to tamoxifen in breast cancer patients.

Today, production and extraction of oil from evening primrose and borage is done by companies primarily in China, New Zealand, and England. Pharmaceutical licensing for GLA oil products has had only limited success worldwide.

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